Adaptive Principal Component Analysis Combined with Feature Extraction-Based Method for Feature Identification in Manufacturing

Table 8

Suitable image features, optimal principal components, and indicators for pattern detection in manufacturing. f_j: suitable image features, PC_j: optimal principal components, j: representing , I_i(i=0,1,2,3): indicators for the corresponding class .

Class	f0 (pixels)	f1	f2	f3	f4	PC0	PC1	PC2	PC3	PC4	Ii
A	256 ×192	C5, C6  C7	N/A	4-level	N/A	1.3632	1.2138	N/A	1.4098	N/A	I0
B	512 ×384	C4,C5, C6,C7	N/A	4-level		1.5129	1.1052	N/A	1.3844	1.1426	I1
C	512 ×384	C4,C5, C6,C7	4-level	N/A		1.4793	1.1337	1.2954	N/A	1.1058	I2
D	256 ×192	C5, C6  C7	4-level	N/A	N/A	1.4068	1.1972	1.3173	N/A	N/A	I3